Picker-stick check.



w. CURRAN.

PICKER STICK CHECK.

APPUCATION FILED 050.10. 1917.

Patented Dec. 3,1918.

n r w x PX livllal IIPIIII an)". a c

I. l v11.

WILLIAM oim mm, or LEWISTON, MAINE, assienonoronn-i-ianrTo rA'rnioK r.

, 1 i Tani/in eger LEWISTON, MAINE. i 1 it i icxnn-sricx CHECK.

1,286,54t ll.

Specification of Letters Patent.

Application filed Decem ber in, 1917." Serial n6. 206 482;

" To all whom it may concern:

citizen of the United States, residing at the position make and use thesame.

Be it known that I, W'ILL AM GUR AN, a

Lewiston, in the county of Androscoggin and State of Maine, haveinvented certain new and useful Improvements in Picker- Stick Checks;andl do declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilledin the art to whichitappertains to I My inventionhas for object to provide an extremelysimple andinexpensive, yet a highly efiicient and durable device forchecking the speed of the picker-sticks ofa looin as said sticks nearthe limit of their travel;

and with this general object in iew, the invention resides in the novelfeaturesof construction and unique combinations of parts to behereinafter fully described and claimed, the descriptive matter beingsupplemented by the accompanyin drawings which form a part ofthisspecication and inwhich: j

Figure 1. is a top plan view of the invention showing the lay of theloom and the picker stick inf dotted lines and illustrating 0 stick hasreached the limit of its proceeding ti n; 4 j M i a 1 Fig. 2 is aduplicate of Fig. 1 but disclosing the position of the check whenthepicker stick has completedits receding movement;

Fig. 3 is a side elevation of the check; Fig. 4 is a transversesectionon the plane ofthelineHof Fig.3; 1 Fig. 5 is a perspective View of theattaching plate; and

Fig. 6 is a plan View bar. 1 j p In the drawings above brieflydescribed, the numeral 1 designates the lay of a loom and 2 hasreference to the picker stick which is forced in one direction to sendthe shuttle along the lay and then returns to normal, awaiting thereturn of said shuttle. It is j the object of my invention to improveupon devices heretofore employed for slowly bringing the picker stick toa stand still and with this end in view I employ the construetiondescribed below. p A horizontal supporting plate 3 extendslongitudinally of the lay 1, preferably below the latter and is providedwith a vertical flange or the like a secured to said lay, lugs of thestick-checking the check when said picker j as the forward movement,

tween the plate and flange to space the Patented nea s, m le. 7

6 being preferably formed at. the angle be former from thelay a suitabledistance to admit the head of a bolt 7 j which depends through thecenter of the plate... The ends fio of the plate. 3 are formed with apair of braking P je ns 8 located on the lower f V 8 and contacting witlthe flat lower faces of such projections, a stick checkingbari), 1

the center ofwsaid; bar having an openingfi throughwhicli the bolt?projects. A washer 1* 11 andZnutXlO are provided onthe lower end of bolt7 and a sleeve 12 surrounds this bolt between the washer and bar 9,.thdup-gl per end of said"sleeve having" an external shoulder 13 aga 1nstwh1ch one end of a coiled spring 14; bears, the other end of said- 1spring being pos tioned aga nst the washer 11 By this arrangement, itwill be obvious that tightening of the nut10 will place I spring 14:under such tension as tohold the.

endsof the checking. bar 9. suitable frie tioiial contact with thebraking projections 8, thusresisting the movement of said checkingbar tothe reqiiired extent. Tightening:

of the nutalsobows the bar as depicted in Fig. 3 and thus places itunder tension to assist in frictionally engaging the ends of said barwiththe braking projections 8.

The entire device is spaced to one side of j the path ofthepicker. stick2 and the inner edge of bar 9 is formed with opposed slowly pitched camsurfaces 15and 15 one surface being projected into the path of the stick2 1 whenthe other is retracted as will be clear from Figs. 1 and 2.During its proceeding 1 stroke, or rather near the completion of saidstroke, the picker stick contacts with the cam surface 15 and thus rocksthe checking bar 9 around its pivot, such action however being resistedby the friction brakes above.

described, so that the stick 2 is slowly brought to a standstill. Uponits receding or return motion the picker stick 2 contacts with the camsurface 15 which has been pro: jected by rocking ofthe bar in the mannerset forth. Contact of the stick with said surface 15 rocks the bar 9 inthe opposite direction against the action of thefriction brakes, so thatthe return movement of the i i picker stick is checked in the samemanner From the foregoing, taken in connection with the accompanyingdrawing, it will be obvious that although my invention is of extremelysimple and inexpensive nature, it Will be highly efficient and durable,particular emphasis being laid upon the location of the friction brakesat the ends of the check bar 9, this location being much moreadvantageous than a central brake due to the fact that a comparativelysmall amount of friction at the ends of the bar ill'resist the movementof the latter more effectively than a larger amount at the centerthereof.

Since probably the best results are obtained from the several specificdetails shown and described, these details are preferably employed, butI Wish it understood that Within the scope of the invention as claimed,numerous minor changes may Well be made.

I claim:

1. A picker stick check comprising a bar extending longitudinally of thepicker stick path and at one side thereof, said bar being pivotedcentrally and having on one edge a pair of cam surfaces to be struck bythe picker stick during its proceeding and receding strokes, Whereby toalternately rock said bar in opposite directions and friction brakes forthe ends of said bar to resist said rocking movement. 7 2. A pickerstick cheek comprising a bar extending longitudinally of the pickerstick path and at one side thereof, said bar having on one edge a pairof cam surfaces to be struck by the picker stick during its pro ceedingand receding strokes, friction braking surfaces against which the endsof said bar bear, and means at the center of said bar for pivotallymounting it and constraining its ends to frictionally engage saidbraking surfaces.

3. A picker stick check comprising a supporting plate extendinglongitudinally of the picker stick path and at one side thereof, theends of said plate having a pair of braking projections extending fromone flat side of said plate, a stick-checking bar extendinglongitudinally of said plate and bearing at its ends against saidprojections, and means for pivoting the center of said bar to said plateand constraining the ends of the former to frictionally engage saidprojections, one edge of said bar having a pair of cam surfaces to bestruck by the picker stick during its proceeding and receding strokes.

4:. A picker stick check comprising a stick-checking bar extendinglongitudinally of the picker stick path and located at one side thereof,the inner edge of said bar having opposed cam surfaces to be struck bythe picker stick during its proceeding and receding strokes, a pair offriction braking bodies against which the ends of said bar bear, andmeans for pivotally mounting the center of said bar and for bowing thelatter longitudinally to place it under tension, whereby the ends ofsaid bar are held in frictional engagement with said braking body.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing Witnesses.

WILLIAM CUR-RAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

